Organic garbage and sludge mixed solid fuel and preparation method thereof

Abstract

The invention discloses solid fuel which is mixed by organic waste and sludge and a process for preparation. The solid fuel comprises the organic waste: 25%-55%, the sludge: 20%-50%, coal powder: 20%-50%, combustion improver: 0.15%-0.25% and desulfurization dechlorinating agent 0.5%-2%. The process for preparation comprises three stages of raw material preparation, molding and consolidation. The invention is tested by the solid fuel mechanical strength, burning characteristics, pollution control and the like. The solid fuel which is mixed by the organic waste and the sludge and prepared by the manufacturing process of the invention is comparatively ideal clean fuel with higher mechanical strength and can satisfy long-distance transportation with the falling strength more than 99%, the invention is the solid fuel with strong mechanical strength, good water resistance, excellent combustion characteristics, strong thermal stability and non pollution and can be extended to be applied in civilian uses and industrial sectors. The invention can also save a great amount of non-renewable fossil fuels such as petroleum, coal and the like with good social and environmental benefits.

Description

【Technical field】

[0001] The invention relates to the technical field of domestic garbage and sludge resource utilization and environmental protection energy, in particular to a solid fuel capable of reducing, harmless and resourceful treatment of urban domestic garbage mixed with organic garbage and sludge and its preparation method. 【Background technique】

[0002] The annual output of "urban waste" in my country alone is nearly 150 million tons, and it is increasing at an annual rate of 7% to 9%. According to incomplete statistics, China's urban domestic waste has been piled up to more than 6 billion tons over the years, and about two-thirds of the cities are trapped in the predicament of garbage siege. The vast majority of urban waste is piled in the open air, which not only affects the urban landscape, but also pollutes the atmosphere, water and soil that are vital to our lives, posing a threat to the health of urban residents. Garbage has become a thorny problem in ur...